When install data is imported into a Phacility instance, the account import/merge tool doesn't sort/collate usernames properly and incorrectly considers "Alice" and "alice" to be different usernames.

To reproduce:

• Create a central account named "Alice".
• Import instance data with an account named "alice".
• Expect: Tool detects username match.
• Actual: Tool fails to detect username match and wonky stuff happens if you try to create an account.